Evaluating typical flood risks in Yangtze River Economic Belt: application of a flood risk mapping framework

Chengwei Lu, Jianzhong Zhou (), Zhongzheng He and Shuai Yuan
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Chengwei Lu: Huazhong University of Science and Technology
Jianzhong Zhou: Huazhong University of Science and Technology
Zhongzheng He: Huazhong University of Science and Technology
Shuai Yuan: Huazhong University of Science and Technology

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2018, vol. 94, issue 3, No 11, 1187-1210

Abstract: Abstract The Yangtze River Economic Belt is one of the three national strategies of China, while flood risk is one of the most important concerns in the development of Yangtze River Economic Belt. In order to decrease the risks caused by floods, complete flood management system and adequate pre-arranged planning are desiderated to be researched in advance. This study considers two typical situations of flood risk, in which one is sluice-control situation in flood detention area and another is dike-break situation in flood-protected area, and proposes a framework for flood risk mapping. The results show that the losses caused by flood hazards are massive both in the two typical cases when extreme floods happen. The economic losses of different indicators are of great difference in flood detention area and flood-protected area, respectively. The framework effectively handles the complex boundaries in the Yangtze River Economic Belt and provides more accurate flood routing information. The evacuation plan module which has been incorporated in the framework also provides informative assistance for emergent action of evacuation under urgent condition.

Keywords: Flood risk; Dike-break; Sluice-control; Complex boundaries handling techniques; Evacuation plan (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1007/s11069-018-3466-x

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